About Us

April 28th 05, 02:12 PM

"Johnson X. Jones" Johnson wrote in message
...

"Chad Wahls" wrote in message
...

"Johnson X. Jones" Johnson wrote in message
...
has anyone had a problem with the magnum 257 dropping down 10 khz when
the power is turned on? this happens when the on-off knob is turned to
the on position. i thought it maybe an issue with my truck but it
happened when wired direct to the battery as well as inside on a power
supply. this issue doesn't affect the way the radio talks. works fine
when on the supply going into the 5/8 wave ground plane.

thanks in advance

johnsonX

Are you still using the stock mic? Keep in mind that the stock mic's
up/down button is pulsed with with the either the 12V coming up the mic
cord or ground, I can't remember off the top of my head. If you have
this wire tied to another it may see the turn on as a channel change.
when rewiring a mic with no channel change the pin 6 and pin 4 must be
disconnected and insulated off.

I can get you more details if you need them.

Here pin out of the mic socket
1- audio
2- Receive
3- Transmit
4- CH up/down
5- Ground
6- 12V from power input with NO CURRENT LIMITING.

Chad
HelloChad and thanks for the reply.
I thought of the mic, too. I tried a radio shack mic from a HTX-10, which
used the same type mic with up and down buttons. I also wired a road king
mic which has no up/down buttons, but still had the same problem. I also e
mailed a couple of shops but everybody said they had never heard of this
issue before. Its kind of strange because it in now way affects the
performance of the radio. A few years ago I had another 257 that had the
orange display and never had this issue. Other than that it's not a bad
little radio for what it is (price range). It picks up a little more noise
than some of the Galaxy/Connex type radios but I figured it was a
compromise I could live with because of the smaller size.

I have one too and love it, compact, cheap, stellar SSB performance!

If it is a new blue one try calling RF Limited and see what's up, hell, it
may still be under warranty.

Good luck, But I have had excellent results from RF Limited's customer
service.

Chad

Thread Tools	Search this Thread
Show Printable Version	Search this Thread: Advanced Search
Display Modes
Switch to Linear Mode Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
The Pool	Alun	Policy	81	June 4th 04 03:30 AM
FS..73 MAG..ISSUE# 1	[email protected]	Boatanchors	0	September 23rd 03 10:04 PM
BCT-7 virtual downconversion mod? (May '97 "MT" Issue)	ScandOUT	Scanner	1	September 8th 03 05:28 PM
[SHARC-News] Hot off the Press! August Issue of SHARC Mariner!	KS3R	General	0	August 5th 03 02:08 AM
[SHARC-News] Hot off the Press! August Issue of SHARC Mariner!	KS3R	General	0	August 5th 03 02:08 AM

Menu

About Us